The Periscope app is a live video application that gives every ordinary iPhone user the opportunity to become a high-impact citizen journalist, able to stream everything from a crime taking place on the street to what they're having for breakfast. Acquired by Twitter in February, Periscope will bring the hectic, real-time update philosophy of Twitter to the video medium, with users able to stream video using Twitter's distribution network.
Periscope has an interesting advantage over another much-hyped video streaming service Meerkat in that users can save video for people to view at a later date.
The Periscope app could have pretty incredible implications. It could help people see what's taking place in a conflict zone, identify criminals or just generally get a live perspective into someone else's life and environment.